Cozaar

brand

Cozaar Side Effects

Dizziness or lightheadedness may occur as your body adjusts to the medication. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor right away if any of these unlikely but serious side effects occur: fainting, symptoms of a high potassium blood level (such as muscle weakness, slow/irregular heartbeat).

Although losartan may be used to prevent kidney problems or treat people who have kidney problems, it may also rarely cause serious kidney problems or make them worse. Your doctor will check your kidney function while you are taking losartan. Tell your doctor right away if you have any signs of kidney problems such as a change in the amount of urine.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
  • hypoglycemic disorder
  • hyponatremia
  • hyperkalemia
  • purpura
  • thrombocytopenic disorder
  • vasculitis
  • orthostatic hypotension
  • hypotension
  • pharyngitis
  • upper respiratory infection
  • sinusitis
  • nasal congestion
  • sialoadenitis
  • dyspepsia
  • hepatitis
  • interstitial nephritis
  • urinary tract infection
  • erythema
  • back pain
  • rhabdomyolysis
  • muscle weakness
  • myalgia
  • cramps
  • dizziness
  • insomnia
  • fatigue
  • dysgeusia
  • edema
  • anorexia
  • headache disorder
  • cough
  • chest pain
  • nausea
  • diarrhea
  • abnormal hepatic function tests
  • anaphylaxis
  • angioedema
  • malaise
  • acute abdominal pain

Drug Interactions

See also Precautions section.

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Some products that may interact with this drug include: aliskiren, lithium, drugs that may increase the level of potassium in the blood (such as ACE inhibitors including benazepril/lisinopril, birth control pills containing drospirenone).

Some products have ingredients that could raise your blood pressure or worsen your heart failure. Tell your pharmacist what products you are using, and ask how to use them safely (especially cough-and-cold products, diet aids, or NSAIDs such as ibuprofen/naproxen).